Over a career spanning more than four decades in the Marine Corps, retired Gen. James “Mad Dog” Mattis -- Donald Trump’s pick for the nation’s next defense secretary -- has acquired a reputation as a blunt, bull-headed, “Marine’s Marine.” And when it comes to his straight-talking ways, the words that have come out of Mattis’ mouth certainly live up to the legend. Here are some of the mad dog’s most colorful quotes:

• “Be polite, be professional, but have a plan to kill everybody you meet.”

• “There are some people who think you have to hate them in order to shoot them. I don’t think you do. It’s just business.”

• “There is nothing better than getting shot at and missed. It’s really great.”

• “You go into Afghanistan, you got guys who slap women around for five years because they didn’t wear a veil. You know, guys like that ain’t got no manhood left anyway. So it’s a hell of a lot of fun to shoot them. Actually it’s quite fun to fight them, you know. It’s a hell of a hoot. It’s fun to shoot some people.”

• “The first time you blow someone away is not an insignificant event. That said, there are some a**holes in the world that just need to be shot.”

• “I come in peace. I didn’t bring artillery. But I’m pleading with you, with tears in my eyes: If you f*** with me, I’ll kill you all.”

• “PowerPoint makes us stupid.”

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